Home / 394,107.28-591,396.44-144,814.48

Finding the Fourth Proportional to 394,107.28, 591,396.44 and 144,814.48

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Solution

The fourth proportional to 394,107.28, 591,396.44 and 144,814.48 is: 217,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,107.28 : 591,396.44 = 144,814.48 : x
  2. Step 2: Convert to fraction form
    394,107.28/591,396.44 = 144,814.48/x
  3. Step 3: Cross multiply
    394,107.28x = 591,396.44 × 144,814.48
  4. Step 4: Simplify right side
    394,107.28x = 85,642,767,932.45
  5. Step 5: Solve for x
    x = 85,642,767,932.45/394,107.28
  6. Step 6: Final answer
    x = 217,308.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.